ASTM_E_1129_-_E_1129M_-_14.pdf

Designation:E1129/E1129M14Standard Specification forThermocouple Connectors1This standard is issued under the fixed designation E1129/E1129M;the number immediately following the designation indicates the yearof original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers separable single-circuit ther-mocouple connectors with two round pins.Connectors coveredby this specification must be rated for continuous use to at least300 F(150 C),but they may optionally be rated higher.1.2 This specification does not cover multiple-circuitconnectors,multi-pin connectors,miniature connectors,orconnectors intended primarily for panel mounting.High tem-perature connectors(for example,those designed for continu-ous use at temperatures above approximately 500 F(260 C)are not intended to be covered by this specification.1.3 The values stated in either inch-pound units or SI unitsare to be regarded separately as standard.1.4 The following precautionary statement pertains only tothe test method portion,Section 9,of this specification.Thisstandard does not purport to address all of the safety concerns,if any,associated with its use.It is the responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.2.Referenced Documents2.1 The following documents of the latest issue form a partof this specification to the extent referenced herein.In case ofconflict between this specification and another referenceddocument,this specification shall take precedence.2.2 ASTM Standards:2E230/E230M Specification and Temperature-ElectromotiveForce(EMF)Tables for Standardized ThermocouplesE344 Terminology Relating to Thermometry and Hydrom-etryE608/E608M Specification for Mineral-Insulated,Metal-Sheathed Base Metal Thermocouples3.Terminology3.1 DefinitionsThe definitions given in Terminology E344shall apply.3.2 Definitions of Terms Specific to This Standard:3.2.1 connector pair,nan assembly consisting of a plugand a jack,each having both positive and negative inserts,thatwill connect two parts of an electrical circuit and provide ameans of physically disconnecting the two parts without theuse of tools.3.2.2 contact insert,nmetallic conductor assemblies that,when installed in connector bodies,provide connections be-tween two parts of an electrical circuit.Plug connectors willcontain projecting prong contacts,while jack connectors willcontain recessed socket or receptacle contacts.3.2.3 service life,ninterval of time that a connectorassembly will be put to use and retain all physical andthermoelectric properties.3.2.4 test difference,napparent thermoelectric differenceattributable to mated connectors observed by the test procedureof this specification.4.Significance and Use4.1 The widespread use of thermocouple connectors re-quires standardization of mating dimensions and performancecharacteristics.4.2 This specification describes standardized thermocoupleconnector dimensions and capabilities and includes test proce-dures suitable for evaluating the performance of a particularspecimen or design.The tests described are not intended forroutine inspection or rapid testing of large groups of connectorsor for quality control purposes.5.Classification5.1 Plugs or Jacks:5.1.1 Connectors shall be constructed as either plugs orjacks,and these two forms shall be designed to connect witheach other.5.1.2 Plug connectors shall have two external prong con-tacts of differing diameters to prevent improper mating.Thenegative prong shall be the larger,as shown in Table 1 and Fig.1.1This specification is under the jurisdiction of ASTM Committee E20 onTemperature Measurement and is the direct responsibility of Subcommittee E20.04on Thermocouples.Current edition approved Sept.1,2014.Published January 2015.Originallyapproved in 1986.Last previous edition approved in 2008 as E1129 081.DOI:10.1520/E1129_E1129M-08E01.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 5.1.3 Jack connectors shall have two internal socket con-tacts sized and spaced to receive and accommodate the prongcontacts of the mating plug.Jack connectors shall also includea means of producing and maintaining sufficient contactpressure to meet all of the other requirements of this specifi-cation.5.2 ANSI/ASTM Type:5.2.1 Connectors shall be produced in versions to matcheach of the standardized ANSI/ASTM thermocouple types asgiven in Table 2.5.2.2 The insert materials of each plug and jack shall havethermoelectric proper